3.8 Article

Enhancement of Serrapeptase Hyper Producing Mutant by Combined Chemical and UV Mutagenesis and its Potential for Fibrinolytic Activity

期刊

JOURNAL OF PURE AND APPLIED MICROBIOLOGY
卷 14, 期 2, 页码 1295-1303

出版社

DR M N KHAN
DOI: 10.22207/JPAM.14.2.25

关键词

Serrapeptase; mutagenesis; EMS; UV radiation; fibrinolytic

资金

  1. SRM IST, Chennai, India

向作者/读者索取更多资源

Serrapeptase is a proteolytic enzyme with many favourable biological properties like anti-inflammatory, analgesic, anti-bacterial, fibrinolytic properties and hence, is widely used in clinical practice for the treatment of many diseases. The activity of microbial enzymes is usually low and hence enhancing the enzyme activity is an integral and crucial area of research. In this study, a mutant with higher serrapeptase activity was developed by multiple exposures of Serratia marcescens to Ultra Violet radiation (UV) and Ethyl methyl sulfonate (EMS) individually and also a combination of both the methods was used. The mutant exposed only to UV radiation for 40 seconds indicated an increase in enzyme activity of 3234.9 EU/mL in comparison to wild-type strain (2770 EU/mL). The mutant exposed to only EMS indicated a very small increase in enzyme activity of 2797 EU/m L in comparison to wildtype strain (2770 EU/mL) but a lower enzyme activity than the UV mutant. Combinational exposure of wild-type to UV and EMS gave a better mutant with an enzyme activity of 3437.6 EU/mL which was higher than all the above methods. Optimization of temperature, incubation period and pH was studied in the wild type and mutant strains and found slight increase in activity in the mutant strain than the wild strain. The mutant serrapeptase has a molecular weight of approximately 50kDa and also exhibited fibrinolysis activity with a maximum blood clot lysis of 35% with 100 U/mL of Serrapeptase.

作者

我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。

评论

主要评分

3.8
评分不足

次要评分

新颖性
-
重要性
-
科学严谨性
-
评价这篇论文

推荐

Article Environmental Sciences

Synthesis of a copper (II) metal-organic framework for photocatalytic degradation of rhodamine B dye in water

Melvin S. Samuel, Kirankumar Venkat Savunthari, Selvarajan Ethiraj

Summary: The Cu(II) metal-organic frameworks based on 1,3,5-benzenetricarboxylic acid were successfully synthesized by the hydrothermal method, exhibiting pyramid-shaped morphology and high specific surface area. The photocatalytic activity of Cu-3(BTC)(2) on Rhodamine B degradation under visible light irradiation was significantly enhanced, showing great potential for environmental applications in water pollution treatment. Additionally, its recyclability was confirmed through multiple cycles of testing.

ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH (2021)

Review Engineering, Environmental

Nanomaterials as adsorbents for As(III) and As(V) removal from water: A review

Melvin S. Samuel, E. Selvarajan, Ankur Sarswat, Harshiny Muthukumar, Jaya Mary Jacob, Malavika Mukesh, Arivalagan Pugazhendhi

Summary: The demand for freshwater is expected to rise in the next few decades due to global population growth and industrial development. Arsenic contamination in groundwater is a major worldwide issue, with various methods such as adsorption and filtration being used to address it. Nanomaterials and biopolymers are widely used for arsenic removal, with studies focusing on their sorption mechanisms and performance.

JOURNAL OF HAZARDOUS MATERIALS (2022)

Article Biotechnology & Applied Microbiology

Removal of environmental contaminants of emerging concern using metal-organic framework composite

Melvin S. Samuel, Kirankumar Venkatesan Savunthari, Narendhar Chandrasekar, Ramachandran Balaji, Ethiraj Selvarajan

Summary: This study investigates the adsorption characteristics of pharmaceutical pollutants using CuBTC@NH2 composite. The post-synthetic modification of CuBTC@NH2 greatly improves the physicochemical characteristics of the MOF, resulting in differences in the adsorption behavior of pharmaceutical pollutants such as IBF and ACE from aqueous solutions. The results demonstrate the potential of the CuMOF@NH2 composite to remove pharmaceutical pollutants from toxic wastewater.

ENVIRONMENTAL TECHNOLOGY & INNOVATION (2022)

Article Environmental Sciences

Incorporation of SiO2 functionalized gC3N4 sheets with TiO2 nanoparticles to enhance the anticorrosion performance of metal specimens in aggressive Cl- environment

Alexander Pinky Steffi, Ramachandran Balaji, Natarajan Prakash, Thangavel Pichaiappa Rajesh, Selvarajan Ethiraj, Melvin S. Samuel, Ashok Kumar Nadda, Narendhar Chandrasekar

Summary: Carbon-based nano-structured materials are widely used in composite coating for anti-corrosive reinforcement. The highly efficient gC(3)N(4)/SiO2/TiO2 ternary nanocomposite enhances the physical, chemical and mechanical properties of the coating, making it suitable for real-world applications.

CHEMOSPHERE (2022)

Article Environmental Sciences

Synthesis of recyclable GO/Cu3(BTC)2/Fe3O4 hybrid nanocomposites with enhanced photocatalytic degradation of aflatoxin B1

Melvin S. Samuel, K. Mohanraj, Narendhar Chandrasekar, Ramachandran Balaji, Ethiraj Selvarajan

Summary: This study evaluated the photocatalytic performance of the GO/Cu-3(BTC)(2)/Fe3O4 photocatalyst for the degradation of AFB1. The results showed that the photocatalyst had a high degradation efficiency of AFB1 due to its large surface area and improved performance. It also demonstrated high capturing capacity and photoactivity synergy.

CHEMOSPHERE (2022)

Article Materials Science, Multidisciplinary

High-performance anti-corrosive coatings based on rGO-SiO2-TiO2 ternary heterojunction nanocomposites for superior protection for mild steel specimens

Alexander Pinky Steffi, Ramachandran Balaji, Narendhar Chandrasekar, Natarajan Prakash, Thangavel Pichaiappa Rajesh, Selvarajan Ethiraj, Melvin S. Samuel, Srikanth Vuppala

Summary: Researchers have successfully synthesized an anticorrosive ternary nanocomposite coating that protects metal surfaces, prevents corrosion damage, and exhibits high corrosion resistance.

DIAMOND AND RELATED MATERIALS (2022)

Article Environmental Sciences

Fabricating BiOI nanostructures armed catalytic strips for selective electrochemical and SERS detection of pesticide in polluted water

Ramachandran Balaji, Selvarasu Maheshwaran, Shen-Ming Chen, Elayappan Tamilalagan, Narendhar Chandrasekar, Selvarajan Ethiraj, Melvin S. Samuel

Summary: A dual mode catalytic strip equipped with 2D BiOI nanostructures was constructed for the dual mode sensing of hazardous trichlomphenol (TCP). The BiOI nanostructures exhibited superior catalytic properties and sensitivity in electrochemical and SERS modes for the detection of TCP.

ENVIRONMENTAL POLLUTION (2022)

Article Environmental Sciences

Ultrasensitive electrochemical detection of furazolidone in biological samples using 1D-2D BiVO4@MoS2 hierarchical nano-heterojunction composites armed electrodes

Selvarasu Maheshwaran, Ramachandran Balaji, Shen-Ming Chen, Yo-Shiuan Chang, Elayappan Tamilalagan, Narendhar Chandrasekar, Selvarajan Ethiraj, Melvin S. Samuel, Mohanraj Kumar

Summary: In this study, a novel electrocatalyst for electrochemical sensing of Furazolidone (FZE) drug was developed using hydrothermally synthesized BiVO4@MoS2 hierarchical nano-heterojunction composite. The unique composite exhibited excellent electrocatalytic activity in sensing FZE with superior linear detection ranges and a limit of detection far superior to other reported sensors. The BiVO4@MoS2 based sensor is recommended for analyzing real-time samples like human urine and blood serum with appreciable recovery.

ENVIRONMENTAL RESEARCH (2022)

Article Environmental Sciences

Influence of 2D template-assisted (SBA-15) metal oxide Co3O4 for pseudocapacitive and dye degradation application

Natarajan Prakash, Ramachandran Balaji, Saravanan Govindaraju, Alexander Pinky Steffi, Nagendran Santhanalakshmi, Kumar Mohanraj, Ethiraj Selvarajan, Narendhar Chandrasekar, Melvin S. Samuel

Summary: The study successfully synthesized S15/m-Co3O4 nanoarcs, confirming their excellent electrochemical performance and photocatalytic degradation capabilities. This material exhibited a specific capacity of 87.5 C/g in a 1 M KOH solution, with a retention capacity of 87% after 1000 cycles, and can also serve as a catalyst for the degradation of dye molecules through photocatalysis.

ENVIRONMENTAL RESEARCH (2022)

Review Chemistry, Physical

A Review on Green Synthesis of Nanoparticles and Their Diverse Biomedical and Environmental Applications

Melvin S. Samuel, Madhumita Ravikumar, Ashwini John J., Ethiraj Selvarajan, Himanshu Patel, P. Sharath Chander, J. Soundarya, Srikanth Vuppala, Ramachandran Balaji, Narendhar Chandrasekar

Summary: The green synthesis of metal oxide nanoparticles is an important research area that can enhance their biocompatibility and applications in the medical and environmental sectors. Utilizing microorganisms and plant extracts for bio-synthesis can reduce toxicity and bring new insights into nanoparticle production. Current research primarily focuses on the application of nanoparticles in cancer therapy and explores their potential for clinical use.

CATALYSTS (2022)

Article Environmental Sciences

Hydrothermally constructed AgWO4-rGO nanocomposites as an electrode enhancer for ultrasensitive electrochemical detection of hazardous herbicide crisquat

Selvarasu Maheshwaran, Vengudusamy Renganathan, Shen-Ming Chen, Ramachandran Balaji, C. R. Kao, Narendhar Chandrasekar, Selvarajan Ethiraj, Melvin S. Samuel, Muthusamy Govarthanan

Summary: A hybrid AgWO4-rGO nanocomposite electrode was successfully constructed by hydrothermal method for the rapid electrochemical detection of harmful pesticides. The nanocomposite exhibited excellent catalytic activity and ultrasensitive detection limit, with good selectivity and reproducibility for real water samples.

CHEMOSPHERE (2022)

Review Biochemistry & Molecular Biology

A systematic review of recent trends in research on therapeutically significant l-asparaginase and acute lymphoblastic leukemia

Susan Aishwarya Suresh, Selvarajan Ethiraj, K. N. Rajnish

Summary: L-Asparaginases are widely used in the treatment of Acute Lymphoblastic Leukemia (ALL) and reducing acrylamide in the food industry. However, the enzyme's side effects and the risk of acrylamide-induced carcinogenesis limit its application. Enzyme immobilization and gene editing techniques are important approaches to improve its efficacy.

MOLECULAR BIOLOGY REPORTS (2022)

Review Environmental Sciences

A comprehensive review on strategic study of cellulase producing marine actinobacteria for biofuel applications

J. Ashwini John, Melvin S. Samuel, Muthusamy Govarthanan, Ethiraj Selvarajan

Summary: Marine actinobacteria can produce cellulases with high stability, which can convert cellulose into glucose for biofuel production. This review provides a comprehensive overview of various applications of cellulases from marine actinobacteria, including screening for novel cellulase genes, enhancing production, and immobilizing the enzyme for industrial usage.

ENVIRONMENTAL RESEARCH (2022)

Review Environmental Sciences

Processing of Carbon-Based Nanomaterials for the Removal of Pollutants from Water/Wastewater Application

Rashmi Singh, Melvin S. Samuel, Madhumita Ravikumar, Selvarajan Ethiraj, Venkatesan Savunthari Kirankumar, Mohanraj Kumar, R. Arulvel, Sagadevan Suresh

Summary: This article provides an overview of abundant carbon-based nanomaterials in both the inorganic and organic worlds, including benzene, diamond, graphite, fullerene, and carbon nanotubes. The synthesis, characteristics, and various applications of graphene are explored, with a focus on ecologically friendly production techniques. Recent advancements in the detection and treatment of organic contaminants and heavy metals using nanomaterials are also discussed. The article presents the current state of the field and is considered helpful for anyone interested in nanomaterials and related materials.
Article Engineering, Environmental

Fabrication of 2D-0D Ti3AlC2@SmVO4 heterojunction nanocomposites for ultrasensitive electrochemical detection of sulfathiazole in environmental samples

Selvarasu Maheshwaran, Ramachandran Balaji, Shen-Ming Chen, Ying-Chih Liao, Narendhar Chandrasekar, Selvarajan Ethiraj, Melvin S. Samuel

Summary: In this study, sonochemically combined 2D-0D Ti3AlC2@SmVO4 nanocomposites were successfully used for the electrochemical detection of Sulfathiazole. Thorough characterization of the TASV heterojunction composites revealed their excellent electrochemical properties and remarkable detection range for SFZ sensing. The performance of TASV sensors in real-world conditions was also highly admirable.

JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING (2022)

暂无数据